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An urn contains 1 red disc, 4 purple discs, and 95 orange discs. Two discs are to be chosen from the urn, simultaneously and at random.
Quantity A
The probability that one of the discs chosen will be red
Quantity B
The probability that both discs chosen will be purple
A显示答案
· 相关考点
6.4.1 古典概率
6.4.1 古典概率
以上解析由 考满分老师提供。
